Adjustable t pipe-joint.



No. 861,409. PATENTED JULY BO. 190-7.

' P. WAGNER.

ADJUSTABLE T-PIPE JOINT. APPLICATION FILED DBO. 7, 1906.

WESSES: INVEIV 7'0/7 ATTORNEY.

PAUL WAGNER, OF PHILADELPHIA, PENNSYLVANIA.

ADJUSTABLE T PIPE-JOINT.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed December 7, 1906. Serial No. 346,732.

To all whom it may concern:

Be it known that I, PAUL WAGNER, a citizen of the United States of America, residing in the city and county of Philadelphia, in the State of Pennsylvania,

have invented a certain new and useful Improvement in Adjustable 1 Pipe-Joints, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My invention relates'to pipe connections and particularly to what are known as T connections for stove or furnace smoke pipes.

The main object of my invention is the provision of a connection in which the branch and the main pipes are so shaped and arranged that they may be assem bled in different angular relations without changing the form of the parts.

A further object of my invention is the provision of a connection which maybe readily assembled and, if need be, disassembled without the use of any tool more complicated than a simple wrench or the like.

The various features of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a part of this specifica tion. For a better understanding of my invention, however, reference HUB b6 had to the accompanying drawings and descriptive matter in which I have illustrated and described forms in which my invention may be embodied.

Of the drawings, Figure 1 is a perspective View of my improved pipe connection. Fig. 2 is a sectional elevation of the connection shown in Fig. 1. Fig. 3 is an elevation showing the branch pipe at an angle to the main pipe different from that of Fig. 2. Fig. 4 is a view similar to Fig. 3, showing a further angular variation. Fig. 5 is an elevation of the gap closing strap shown in Figs. 1., 2 and 3, and Fig. 6 is a view similar to Fig. 5, showing a modification of the strap.

In the drawings A represents the pipe which, for convenience in distinguishing it, I may call the branch pipe and which may be formed out of sheet iron, or the like, in the usual manner. B is a similar pipe which I may call the main pipe, and is formed with an opening B in one side through which communication is established between the pipes A and B. The branch pipe A has suitably formed curved notches or openings A and A formed at opposite sides of the end adjacent the pipe B, the notches being separated by the diametrically opposed tongue portions A which straddle the main pipe.

The notches A and A are so shaped that when the parts are assembled, as shown in Fig. 4, the pipe B fits snugly in them. When it is desired to assemble the pipes at a different angle, the pipe B is kept in close engagement with the margin of notch A, for instance,

as shown in Fig. 2 or Fig. 3. The gap between the pipe B and the margin of the notch A is then closed by the bent strap D, which partly encircles the two pipes.

The strap D has its side edges D bowed out and its ends overlap the ends of the tongues A The parts may advantageously be secured together by bolts 0 passing through slots B formed in opposite sides of the pipe A adjacent the openings B, holes in the tongues A and when the strap D is used, the particular holes D in the strap ends to give the proper strap length for the desired angle between pipes A and B. Instead of the series of holes D in the strap ends, I may employ slots D, as shown in Fig. 6. I prefer, however, to use the series of holes D shown in Fig. 5,

' since with that construction the bolts passing through the slots B", the holes in the tongues A and the appropriate holes D in the strap D, serve as cam lugs in the slots B when the latter are suitably shaped to draw all the parts together and make tight joints when the pipes A and B are pressed together. It will, of course, be understood that the slots B areshaped and arranged so that the bolt holes in the tongues A register with the slots when the pipes are assembled at the various angles. For convenience in assembling, I prefer to put the heads G of the bolts inside the tube B, and to make the holes in the tongues so that the bolts fit tightly in them.

To improve the joints, the edge of particularly its upper portions, and the middle portions of the strap D, are out-turned, as indicated at B and D respectively. When the parts are properly adjusted and the nuts 0 screwed home, the joints formed are quite good enough for the purpose for which such pipes are ordinarily used. I

Theoretically, of course, tight joints can only be ob tained with blanks of given form assembled at various angles, by deforming the tubes, but with the construction disclosed and with the slight angular variation ordinarily desired, the deformation necessary to obtain tight joints is so slight as to be unnoticeable and entirely unobjectionable.

By the use of my invention, an unskilled laborer may, without any special tools, readily make the pipe connections for heating furnaces or the like with roughcut blanks from stock, since the angle at which the two pipes go together does not need to have been accurately determined beforehand.

It will, of course, be understood that instead of making the branch pipe adjustable from the position shown in Fig. 4, to the position shown in Fig .2, I may so shape the blanks that the pipes may be adjustable through a different angular range.

While the particular embodiments of my invention disclosed have been found quite satisfactory, it will be the opening B understood by all those skilled in the art that changes may be made in the form of my invention without departing from its spirit.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a pipe connection, a main pipe, a branch pipe having tongues provided at one end which are separated by notches shaped to snugly receive the main pipe when the two pipes are assembled at one angle and a strap partially encircling the'two pipes and closing the gap between the main pipe and the margin between one of said notches when the pipes are assembled at a different angle with the main pipe resting in the other notch, and means for securing together at the different angles the pipes and the strap when used.

2. In a pipe connection, a main pipe, a branch pipe having tongues separated by a notch shaped to snugly receive the main pipe when the pipes are assembled at one angle,

and a strap partly-encircling the two pipes and closing the gap between the main pipe and the margin of said notch when the pipes are assembled at a ditferent angle and means for adjustably securing together at the different angles the pipes and the straps when used.

3, In a pipe connection, a branch pipe having notches formed in opposite sides at one end and tongues between the notches, a main pipe passing between the tongues, means for securing the pipes together, comprising bolts passing through openings fitting them in one of the pipes and slots in the other pipe, the slots being arranged so that the pipes may be clamped together at various angles while the main pipe rests snugly against the edge of one of the notches of the branch pipe, and a strap for closing the gap between the main pipe and the margin of the other notch, said strap having its ends secured in place by said bolts.

4. In an angular-1y adjustable pipe connection, a branch pipe having tongues provided at one end by forming notches in the opposite sides of the pipe, a main pipe passing between said tongues and resting snugly at all times in one notch, a bent strap partially encircling the two pipes at, and closing the gap between the margin of the other notch and the main pipe when the main pipe does not rest snugly in both notches, said strap having its ends overlapping said tongues, and means for adjustably clamping the tongues and theends of the strap against the side of the main pipe in different positions to adjust the angle between the pipes.

5. In a pipe connection, a main pipe having a branch pipe opening in one side and inclined slots formed in opposite sides of the pipe adjacent said branch pipe opening, a branch pipe having tongues which straddle the main pipe and are separated by notches formed in opposite sides of the end of the branch pipe, said tongues having bolt openings formed in them which register with said slots as the pipes are adjusted angularly with respect to each other, while maintaining the main'pipe in firm engagement with the margin of one of the side notches, and bolts passing through the holes in the tongues and the slots for clamping the parts together with the desired adjustment,

6. In an angularly adjustable pipe connection, a main pipe, a branch pipe having tongues separated by notches in one of which the main pipe rests snugly at all times, said tongues being provided each with a bolt hole and the main pipe being formed with a branch pipe opening and bolt openings which register with the tongue bolt holes as the pipes are angularly adjusted, a strap partially encircling the two pipes to close the gap between the main pipe and the margin of the other notch and provided with a plurality of bolt holes in its ends and clamping bolts passing through the slots, the holes in the tongues and the appropriate holes in the ends of the strap.

7. In an angular-1y adjustable pipe connection, a pipe formed with an opening, a second pipe, means for securing said pipes together at difierent angles with one side of said second pipe bearing against the margin of said opening, and a bent strap partly encircling the two pipes to close the gap between the pipes and adjustably secured in place by the means employed for securing the pipes to gether.

PAUL WAGNER.

Witnesses:

ARNOLD KATZ, JOHN E. HUBBELL. 

